ARC Technologies manufactures an elastomer based microwave absorber material with iron loading as the loss mechanism. This material is extensively used in the waveguide industry as an absorber, attenuator, or termination. Applications also exist in the antenna industry where high insertion loss is needed for antenna isolation or the suppression of surface currents. The standard material is supplied in rigid form, which offers excellent machinability to close tolerances using standard machine tools. It can also be supplied in a flexible sheet for application to irregular surfaces.
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